Image attached: geometry

The formula for an area of a rectangle is L times W. So divide 144 by 16 and you get the width, which is 9. The ratios of rectangle A is 16:9. The ratios of rectangle B is 4:x. 16 divide by 4 is 4, so 9 divide by 4 is 9/4 or 2.25.

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.